Neat concept, but the density of needles seems quite low for tattoing, and that is likely why the linework of the tattoos in those pictures is so blurry. While getting tattooed, the needle will puncture skin and deposit ink typically 1500+ times per minute. The most specific that this article gets is saying the patches have "hundreds" of needles. At the high end (999 needles in a patch) this means that this patch has substantially lower resolution than a single minute of being tattooed.

So, it's a neat gimmick, but it'll need a lot of work to be much more than that. It'd be neat for some small pieces to fill space I guess.

And a bit of a tangent, but I also have a pretty strong needle aversion, and I have not found that getting tattooed "feels" like there are any needles involved in the process. I know logically that it is a needle, but subjective process (the pain and visuals) really bears no resemblance to a needle.